High-strength rock crushing push bench

Abstract

The invention belongs to the technical field of pipe jacking machines, and discloses a high-strength rock crushing pipe jacking machine which comprises a machine head and a machine tail, the machine head is rotationally connected with a mounting frame with a cutter head, a partition plate in the machine head is rotationally connected with a shaft sleeve, and the shaft sleeve is rotationally connected with a driving shaft connected with the cutter head. A motor on the partition plate is meshed with a driving shaft through a driving bevel gear and a driven bevel gear II and a driven bevel gear I on a shaft sleeve, so that the driving shaft and the driven bevel gear II and the driven bevel gear I respectively drive a crushing roller II and a crushing roller I to act. The shaft sleeves drive the baffles to slide along the sliding grooves through the tooth grooves, the gears and the connecting rods to be matched with the transfer openings of the partition plates and the diversion groove bodies. An auger conveying pipe connected with the flow guide groove body penetrates through the mounting plates of the machine head and the machine tail and is supported by the machine tail support, and a collecting box on the machine tail base is matched with the auger conveying pipe. According to the pipe jacking machine, cutter head cutting and double crushing roller secondary crushing are combined with baffle control to prolong the crushing time, the rock crushing effect is improved, conveying blockage is avoided, and the pipe jacking machine is suitable for high-strength rock stratum construction.

Description

Technical Field

[0001] This invention relates to the field of pipe jacking machine technology, and in particular to a high-strength rock crushing pipe jacking machine. Background Technology

[0002] When constructing pipe jacking tunnels in high-strength rock formations, the crushing capacity of pipe jacking machines faces severe challenges. Traditional pipe jacking machines often employ fixed cutters or simple telescopic cutting designs, resulting in a limited approach to crushing hard rock, relying primarily on direct crushing and impact from the cutters. However, high-strength rock is hard and structurally intact, making it difficult to completely break it into small, transportable pieces using only mechanical forces. This is especially true when encountering large boulders, where the cutters often fail to achieve effective crushing, easily leaving large rock fragments behind. Large, unbroken rocks entering the conveying system can easily cause blockages in the pipelines. Blockages not only require manual clearing, affecting the construction progress, but can also lead to excessive loads on the conveying equipment, causing damage. Summary of the Invention

[0003] The present invention aims to provide a high-strength rock crushing and pipe jacking machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A high-strength rock crushing and pipe jacking machine includes a head and a tail, the head and tail being connected. The head is rotatably connected to a mounting frame, and a cutter head is connected to the mounting frame. A partition is connected to the head, and a bushing is rotatably connected to the partition. A drive shaft is rotatably connected to the bushing, and the drive shaft is connected to the cutter head. A motor is connected to the partition, and a driving bevel gear is connected to the output end of the motor. A driven bevel gear one and a driven bevel gear two are respectively connected to the bushing and the drive shaft, and the driven bevel gear one and the driven bevel gear two mesh with the driving bevel gear. A crushing roller one and a crushing roller two are respectively connected to the bushing and the drive shaft. The partition has a transfer port, and the partition connects to... The machine head is connected to a guide channel. The partition has a sliding groove, and a slider is slidably connected to the inner wall of the sliding groove. The slider is connected to a baffle, which cooperates with the transfer port and the guide channel. The bushing has a toothed groove. The partition is rotatably connected to a gear, which meshes with the toothed groove. The gear is rotatably connected to a connecting rod, which is rotatably connected to the baffle. The guide channel is connected to a auger conveying pipe. The machine tail is connected to a mounting plate. The auger conveying pipe passes through the machine head and the mounting plate. The machine tail is connected to a bracket, which is connected to the auger conveying pipe. The machine tail is connected to a base, and the base is connected to a collection box, which cooperates with the auger conveying pipe.

[0005] Preferably, the mounting plate is connected to two sets of hydraulic rods, the telescopic ends of the two sets of hydraulic rods are connected to the machine head, and the machine head is connected to two sets of hydraulic rods, the telescopic ends of the two sets of hydraulic rods are connected to the mounting plate.

[0006] Preferably, the machine head is connected to a protective frame, the protective frame is connected to a rubber ring one, the rubber ring one abuts against the machine tail, and the auger conveying pipe is connected to a rubber ring two, a rubber ring three, and a rubber ring four, the rubber ring two, a rubber ring three, and a rubber ring four are respectively connected to the machine head, the mounting plate, and the bracket.

[0007] Preferably, both the machine head and the machine tail have openings, and both the machine head and the machine tail are connected to a limiting structure. The limiting structure includes a mounting box, and the mounting box is connected to a hydraulic rod three. The telescopic end of the hydraulic rod three is connected to an anchor shoe, and the anchor shoe is slidably connected to the inner wall of the opening.

[0008] Preferably, the groove and the slider have a T-shaped cross-section.

[0009] Preferably, the machine head is connected to a ring pipe, the ring pipe is connected to a nozzle, the machine head is connected to a fixed pipe, the fixed pipe is connected to the ring pipe, the machine tail is connected to a water tank, the water tank is connected to a flexible hose, and the flexible hose passes through the mounting plate and is connected to the fixed pipe.

[0010] Preferably, the base has a limiting groove, the collection box is rotatably connected to a roller, the limiting groove cooperates with the roller, the collection box is connected to a handle, and the tail is connected to a ramp, which fits against the base.

[0011] Preferably, the tail section is detachably connected to a sealing plate.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows: (1) This technical solution uses a motor-driven active bevel gear to synchronously drive the bushing and drive shaft to rotate, causing crushing roller one and crushing roller two to rotate in opposite directions. This, combined with the cutter disc, achieves preliminary cutting and secondary crushing of the rock, significantly improving the crushing effect. At the same time, the bushing drives the baffle to open and close periodically through the tooth groove, gear, and connecting rod, extending the contact time between the rock and crushing roller one and crushing roller two, allowing the rock to be more fully crushed in the crushing area. This prevents rocks from being prematurely fed into the guide trough when they are not fully crushed, ensuring that each batch of rocks entering the conveying system is fully crushed. Precise control of the crushed rocks entering the guide trough, and then stable conveying to the collection box through the auger conveying pipe, effectively avoids the problem of conveying blockage caused by large rocks not being fully crushed. The separate design of the machine head and tail and the orderly cooperation of each component not only improve the rock crushing efficiency and conveying smoothness, but also reduce construction interruptions and equipment wear.

[0013] (2) By setting hydraulic rod one and hydraulic rod two, the linear posture of the machine head relative to the machine tail can be flexibly adjusted through the extension and retraction of different hydraulic rods, so as to achieve precise linear offset or angle fine adjustment, easily meet the straight line correction or curve advancement requirements required in construction, and ensure that the pipe jacking machine moves stably along the preset trajectory. At the same time, the rubber ring one connected to the protective frame abuts against the machine tail, and the rubber rings two, three and four on the auger conveying pipe are connected to the machine head, the mounting plate and the bracket respectively. When the machine head and the machine tail are adjusted linearly, these rubber rings can play a buffering and shock absorption role, reducing rigid collisions between components during the adjustment process.

[0014] (3) By setting a limiting structure, stable propulsion can be achieved by controlling the alternating extension and retraction of the head and tail anchor shoes when the pipe jacking machine moves on its own: when the head anchor shoe extends and presses against the surrounding soil to form a fixed fulcrum, the tail anchor shoe retracts, and the whole machine moves forward with the help of the extension and retraction of hydraulic rods one and two; then the tail anchor shoe extends and fixes itself, and the head anchor shoe retracts, completing one movement cycle. This alternating anchoring method provides reliable reaction force support for the self-movement of the pipe jacking machine, avoiding power loss caused by slippage during movement. At the same time, the design of the anchor shoe sliding along the opening can accurately control the anchoring position. Combined with the linear adjustment structure, the pipe jacking machine can maintain a stable trajectory when moving on its own.

[0015] (4) By setting T-shaped grooves and sliders, precise limit guidance can be provided to prevent the slider from detaching from the groove during sliding. This ensures that the baffle moves stably along the preset trajectory when it moves with the slider, avoiding deviations in the fit between the baffle and the transfer port and the guide channel due to slider offset. This ensures the accuracy of the baffle's periodic opening and closing action, providing reliable structural support for extending the contact time between the rock and the crushing roller and improving the crushing effect.

[0016] (5) By setting up a water tank, hose, fixed pipe, ring pipe and nozzle, water can be sprayed into the machine head and cutting area through the nozzle during the operation of the pipe jacking machine. On the one hand, the water flow can cool down the first and second crushing rollers, avoiding overheating damage to the components due to long-term friction and extending the service life of the equipment. On the other hand, the water flow can moisten the rock surface, reduce the hardness and brittleness of the rock, and help the first and second crushing rollers to crush the rock more efficiently.

[0017] (6) By setting a limiting groove that cooperates with the rollers of the collection box, the movement of the collection box can be guided and limited, preventing the collection box from shifting or shaking during movement, ensuring its stable connection with the auger conveying pipe, and preventing the spillage of crushed rocks. The handle connected to the collection box makes it easy for operators to push the collection box, and combined with the rolling characteristics of the rollers, it makes the transfer of the collection box more labor-saving and convenient. The ramp connected to the tail fits snugly with the base, providing a smooth transition for loading and unloading the collection box, and facilitating the smooth entry and exit of the collection box from the working position via the ramp.

[0018] (7) By setting a removable sealing plate, the internal structure of the tail section of the pipe jacking machine can be effectively shielded when the machine is not in operation, preventing external mud, water and debris from entering the tail section and thus protecting the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a side sectional view of the tail section provided by the present invention; Reference numerals: 1. Tail end; 2. Protective frame; 3. Head end; 4. Mounting frame; 5. Cutter disc; 6. Drive shaft; 7. Crushing roller II; 8. Crushing roller I; 9. Opening; 10. Anchor shoe; 11. Partition plate; 12. Fixed pipe; 13. Ring pipe; 14. Nozzle; 15. Bushing; 16. Transfer port; 17. Baffle plate; 18. Guide channel body; 19. Driven bevel gear II; 20. Rubber ring II; 21. Hydraulic rod II; 22. Rubber ring III; 23. Hose; 24. Water tank; 25. Base; 26. Limiting groove; 27. Roller; 28. Slope; 29. ​​Collection box; 30. Handle; 31. Mounting box; 32. Sealing plate; 33. Screw conveyor pipe; 34. Rubber ring IV; 35. Bracket; 36. Mounting plate; 37. Rubber ring I; 38. Hydraulic rod I; 39. Motor; 40. Driven bevel gear; 41. Driven bevel gear I; 42. Slide groove; 43. Connecting rod; 44. Gear; 45. Tooth groove; 46. Hydraulic rod III; 47. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-4The high-strength rock crushing and pipe jacking machine shown includes a head unit 3 and a tail unit 1. A mounting plate 36 is connected to the tail unit 1, and the mounting plate 36 is connected to two sets of hydraulic rods 38 (upper and lower). The telescopic ends of the two sets of hydraulic rods 38 are connected to the right end face of the head unit 3. Two sets of hydraulic rods 21 (front and rear) are connected to the right end face of the head unit 3, and the telescopic ends of the two sets of hydraulic rods 21 are connected to the mounting plate 36. A protective frame 2 is connected to the left end face of the head unit 3, and a rubber ring 37 is connected to the outer wall of the protective frame 2, abutting against the inner wall of the tail unit 1. A mounting frame 4 is rotatably connected to the left end of the head unit 3, and a cutterhead 5 is connected to the left end of the mounting frame 4. A partition plate 11 is connected to the inner wall of the head unit 3, and a bushing 15 is rotatably connected to the center of the partition plate 11. A drive shaft 6 is rotatably connected to the inner wall of the bushing 15, passing through the bushing 15, and its left end is connected to the cutterhead 5. A motor 39 is connected to the right side wall of partition 11. The output end of motor 39 is connected to a driving bevel gear 40. Driven bevel gear 1 41 and driven bevel gear 2 19 are connected to the right end of bushing 15 and the right end of drive shaft 6, respectively, and mesh with driving bevel gear 40. Crushing roller 1 8 and crushing roller 2 7 are connected to the outer side walls of the left side portion of bushing 15 and drive shaft 6, respectively. A transfer port 16 is provided at the bottom of partition 11. A guide channel 18 is connected to the right side wall of partition 11 and the bottom of the machine head 3, with the transfer port 16 aligned with the guide channel 18. A sliding groove 42 is provided on the right side wall of partition 11, with a slider 43 slidably connected to the inner wall of the sliding groove 42. The cross-sections of the sliding groove 42 and slider 43 are T-shaped. A baffle 17 is connected to slider 43, which fits against partition 11 and can be inserted into the guide channel 18 to completely seal the transfer port 16. The bushing 15 has a toothed groove 46 on the outer wall of the right side portion of the partition 11. A gear 45 is rotatably connected to the right side wall of the partition 11, and the gear 45 meshes with the toothed groove 46. A connecting rod 44 is rotatably connected to the right side of the gear 45, and the connecting rod 44 is rotatably connected to the right side wall of the baffle 17. The end of the guide channel 18 away from the transfer port 16 is connected to a auger conveying pipe. Rubber rings 20, 22, and 34 are connected to the outer wall of the auger conveying pipe 33. The auger conveying pipe 33 passes through the right end face of the machine head 3 and the mounting plate 36. Rubber rings 20 and 22 are connected to the right end face of the machine head 3 and the mounting plate 36, respectively. A bracket 35 is connected to the tail 1, and the bracket 35 is connected to rubber ring 34. A base 25 is connected to the bottom of the tail section 1. A limiting groove 26 is formed on the top wall of the base 25. A collection box 29 is placed in the limiting groove 26. A roller 27 is rotatably connected to the bottom wall of the collection box 29. The limiting groove 26 restricts the movement of the roller 27. A handle 30 is connected to the side wall of the collection box 29. A ramp 28 is connected to the bottom of the tail section 1. The ramp 28 fits against the base 25.

[0021] like Figure 1-2 , Figure 4As shown, openings 9 are provided on both the front and rear sides of the machine head 3 and the machine tail 1, and limiting structures are connected to the openings 9 of both the machine head 3 and the machine tail 1. The limiting structure includes a mounting box 31, which is aligned with the opening 9. A hydraulic rod 47 is connected to the inner wall of the mounting box 31, and an anchor shoe 10 is connected to the telescopic end of the hydraulic rod 47. The anchor shoe 10 is slidably connected to the inner wall of the opening 9.

[0022] like Figure 2 As shown, a ring pipe 13 is connected to the top of the inner wall of the machine head 3. The ring pipe 13 is located between the first crushing roller 8 and the second crushing roller 7, and several sets of nozzles 14 are connected to the ring pipe 13. A fixed pipe 12 is connected to the machine head 3, and the fixed pipe 12 communicates with the ring pipe 13. A water tank 24 is connected to the bottom of the inner wall of the machine tail 1. A flexible hose 23 is connected to the water tank 24. A water pump is installed inside the water tank 24, and the flexible hose 23 is connected to the output end of the water pump. The other end of the flexible hose 23 passes through the mounting plate 36 and communicates with the fixed pipe 12.

[0023] Motor 39 drives the active bevel gear 40 to rotate, which in turn drives the driven bevel gear 11 and driven bevel gear 219 to rotate in opposite directions. This causes the bushing 15 to rotate in opposite directions with the drive shaft 6, driving the crushing roller 18 and crushing roller 27 to mesh in opposite directions. At the same time, the drive shaft 6 drives the cutter head 5 to rotate and cut the rock. The rock cut by the cutter head 5 enters the machine head 3 and is crushed a second time by the crushing roller 18 and crushing roller 27. When the bushing 15 rotates, its tooth groove 46 drives the gear 45 to rotate, which pulls the baffle 17 along the T-shaped slide groove 42 through the connecting rod 44. This allows the baffle 17 to periodically open and close the transfer port 16, extending the contact time between the rock and the crushing roller to ensure thorough crushing. The crushed rock falls into the guide trough 18 through the transfer port 16 and is then transported to the collection box 29 by the auger conveyor pipe 33.

[0024] In terms of jacking adjustment, the upper and lower sets of hydraulic rods 38 and the front and rear sets of hydraulic rods 21 form a multi-directional adjustment structure. When it is necessary to adjust the vertical posture of the machine head 3, the upper and lower sets of hydraulic rods 38 are controlled to extend and retract differently: when the upper hydraulic rod 38 extends and the lower hydraulic rod 38 shortens, the machine head 3 tilts upward; conversely, it tilts downward. The front and rear sets of hydraulic rods 21 are responsible for adjusting the front and rear posture of the machine head 3. When the front hydraulic rod 21 extends and the rear hydraulic rod 21 shortens, the machine head 3 deflects forward; when the rear extends and the front shortens, it deflects backward. Through this coordinated extension and retraction of multiple sets of hydraulic rods, the relative angle and position of the machine head 3 and the tail 1 can be precisely changed, thereby achieving linear posture correction and ensuring that the pipe jacking machine advances along the preset trajectory. The rubber ring 37 on the protective frame 2 and the rubber rings 20, 23, and 4 on the auger conveying pipe 33 play a buffering role during the adjustment process.

[0025] When moving independently, the limiting structures on the front and rear sides of the head 3 and tail 1 form an alternating anchoring and propulsion mechanism. When the pipe jacking machine needs to move forward, firstly, the hydraulic rod 3 47 of the head 3 is extended, pushing the anchor shoe 10 to slide out along the inner wall of the opening 9 and press against the surrounding soil, so that the head 3 and the soil form a stable anchoring point; at this time, the hydraulic rod 3 47 of the tail 1 is shortened, the anchor shoe 10 is retracted, and the tail 1 is in a movable state. Subsequently, the hydraulic rod 38 and hydraulic rod 21 connecting the head 3 and the tail 1 are extended, and the reaction force generated by the anchoring point of the head 3 is used to drive the tail 1 to move forward. When the tail 1 moves to a suitable position, the hydraulic rod 3 47 of the tail 1 is extended, so that the anchor shoe 10 of the tail 1 extends and presses against the soil to form a new anchoring point; at the same time, the hydraulic rod 3 47 of the head 3 is shortened, the anchor shoe 10 is retracted, and the anchoring of the head 3 is released. Next, control hydraulic rod 38 and hydraulic rod 21 to shorten, using the tail 1 as a fulcrum to pull the head 3 forward, completing one propulsion cycle.

[0026] The water tank 24, hose 23, fixed pipe 12, ring pipe 13, and nozzles 14 constitute a complete water supply and spraying system. The water pump in the water tank 24 pressurizes the water and delivers it through the hose 23 to the fixed pipe 12, from where it is distributed to the ring pipe 13. The ring pipe 13 is arranged around the crushing roller 8 and the crushing roller 7, and several sets of nozzles 14 connected to it face the crushing area. The specific implementation process is as follows: In use, first place the pipe jacking machine in the starting position of construction, and push the collection box 29 along the slope 28 into the limiting groove 26 of the base 25 using the handle 30, so that the roller 27 is engaged and fixed with the limiting groove 26. Start the water pump in the water tank 24 to make the nozzle 14 of the ring pipe 13 start spraying water, and then start the motor 39. The cutter head 5 rotates to cut the rock, and the crushing roller 1 8 and crushing roller 2 7 rotate in opposite directions to perform secondary crushing. At the same time, the baffle 17 rotates with the bushing 15 to achieve periodic opening and closing. During construction, the attitude of the machine head 3 is adjusted by controlling the extension and retraction of hydraulic rods 38 and 21 as needed to ensure accurate jacking trajectory. The anchor shoes 10 of the machine head 3 and tail 1 are extended and retracted alternately, and the equipment moves autonomously in conjunction with the hydraulic rod drive. The crushed rock enters the collection box 29 through the auger conveyor pipe 33. When the collection box 29 is full, it is emptied by using the handle 30 along the limiting groove 26 and the ramp 28, and then returned to its original position to continue the operation.

[0027] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A high-strength rock crushing and pipe jacking machine, characterized in that: Includes a head (3) and a tail (1), the head (3) is connected to the tail (1), the head (3) is rotatably connected to a mounting frame (4), the mounting frame (4) is connected to a cutter head (5), the head (3) is connected to a partition plate (11), the partition plate (11) is rotatably connected to a bushing (15), the bushing (15) is rotatably connected to a drive shaft (6), the drive shaft (6) is connected to the cutter head (5), the partition plate (11) is connected to a motor (39), and the output end of the motor (39) is connected to... The driving bevel gear (40) is connected to the bushing (15) and the drive shaft (6) respectively, and driven bevel gear one (41) and driven bevel gear two (19) are connected to it. Driven bevel gear one (41) and driven bevel gear two (19) mesh with the driving bevel gear (40). Crushing roller one (8) and crushing roller two (7) are connected to the bushing (15) and the drive shaft (6) respectively. The partition plate (11) is provided with a transfer port (16). The partition plate (11) and the machine head (3) are connected together with a guide channel (18). The partition (11) is provided with a groove (42), and a slider (43) is slidably connected to the inner wall of the groove (42). The slider (43) is connected to a baffle (17), which cooperates with the transfer port (16) and the guide channel (18). The bushing (15) is provided with a toothed groove (46). The partition (11) is rotatably connected to a gear (45), which meshes with the toothed groove (46). The gear (45) is rotatably connected to a connecting rod (44), which is connected to the baffle. (17) Rotary connection, the guide channel body (18) is connected to the auger conveying pipe (33), the tail (1) is connected to the mounting plate (36), the auger conveying pipe (33) passes through the head (3) and the mounting plate (36), the tail (1) is connected to the bracket (25), the bracket (25) is connected to the auger conveying pipe (33), the tail (1) is connected to the base (25), the base (25) is connected to the collection box (29), the collection box (29) cooperates with the auger conveying pipe (33).

2. The high-strength rock crushing and pipe jacking machine as described in claim 1, characterized in that: The mounting plate (36) is connected to two sets of hydraulic rods (38), the telescopic ends of the two sets of hydraulic rods (38) are connected to the machine head (3), and the machine head (3) is connected to two sets of hydraulic rods (21), the telescopic ends of the two sets of hydraulic rods (21) are connected to the mounting plate (36).

3. A high-strength rock crushing and pipe jacking machine as described in claim 2, characterized in that: The machine head (3) is connected to a protective frame (2), and the protective frame (2) is connected to a rubber ring one (37). The rubber ring one (37) abuts against the machine tail (1). The auger conveying pipe (33) is connected to a rubber ring two (20), a rubber ring three (22), and a rubber ring four (34). The rubber ring two (20), rubber ring three (22), and rubber ring four (34) are respectively connected to the machine head (3), the mounting plate (36), and the bracket (35).

4. A high-strength rock crushing and pipe jacking machine as described in claim 2, characterized in that: Both the head (3) and tail (1) are provided with openings (9). Both the head (3) and tail (1) are connected to a limiting structure. The limiting structure includes a mounting box (31). The mounting box (31) is connected to a hydraulic rod three (47). The telescopic end of the hydraulic rod three (47) is connected to an anchor shoe (10). The anchor shoe (10) is slidably connected to the inner wall of the opening (9).

5. A high-strength rock crushing and pipe jacking machine as described in claim 1, characterized in that: The groove (42) and slider (43) have T-shaped cross-sections.

6. A high-strength rock crushing and pipe jacking machine as described in claim 1, characterized in that: The machine head (3) is connected to a ring pipe (13), the ring pipe (13) is connected to a nozzle (14), the machine head (3) is connected to a fixed pipe (12), the fixed pipe (12) is connected to the ring pipe (13), the machine tail (1) is connected to a water tank (24), the water tank (24) is connected to a hose (23), the hose (23) passes through the mounting plate (36) and is connected to the fixed pipe (12).

7. A high-strength rock crushing and pipe jacking machine as described in claim 1, characterized in that: The base (25) has a limiting groove (26), the collection box (29) is rotatably connected to a roller (27), the limiting groove (26) cooperates with the roller (27), the collection box (29) is connected to a handle (30), the tail (1) is connected to a ramp (28), and the ramp (28) fits against the base (25).

8. A high-strength rock crushing and pipe jacking machine as described in claim 1, characterized in that: The tail section (1) is detachably connected to a sealing plate (32).

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